1 files changed, 24 insertions, 0 deletions
diff --git a/src/uart.c b/src/uart.c
new file mode 100644
index 0000000..86bc01f
--- /dev/null
+++ b/src/uart.c
@@ -0,0 +1,24 @@
+#include "uart.h"
+
+void uart_init(void) {
+  UART_TXCTRL = UART_TXCTRL_TXEN;
+  UART_RXCTRL = UART_RXCTRL_RXEN;
+}
+
+void uart_putc(char c) {
+  while (UART_TXDATA & UART_TXDATA_FULL) {}
+  UART_TXDATA = (uint32_t)c;
+}
+
+void uart_puts(const char* s) {
+  while (*s)
+    uart_putc(*s++);
+}
+
+char uart_getc(void) {
+  uint32_t data;
+  do {
+    data = UART_RXDATA;
+  } while (data & UART_RXDATA_EMPTY);
+  return (char)data;
+}